By purchasing an optional Premium Membership, you can support the Palace of Cards. Of course, you receive something in return: Premium Membership comes with some additional features, which you can read more about here.
However, a Premium Membership is not necessary to enjoy the game. As a rule, all our games are free of charge! You can play every game with all the rules, join the League, Clubs and Tournaments, and gain experience.
In the game, you can recognize Premium members by the small crown on their profile picture.